CAJ | 학술논문

在原22000m3LPG船的基础上,进行了全面的优化设计,研发设计了满足最新规范规则要求的新一代21000m3LEG(液化乙烯)运输船.从结构设计着手,以21000m3LEG船为主要研究对象,从结构布置、规范校核、建造工艺等多方面进行了研究.对液化气船(C型舱)结构设计需要考虑的几个重点方面作出论述:船体梁结构强度计算校核,确定船体梁剖面模数;有限元直接强度计算,评估构件强度、疲劳寿命;全船振动分析和局部振动分析,确保船员的居住舒适性和船体构件的稳定可靠性;液化气船特有的船体结构温度场分析,得到温度分布并确定钢材级别等.对全船结构进行了大量优化改进工作,解决了设计中碰到的难点.推出一个优秀的设计方案,使该船结构更可靠,加工建造更为便利,提升了该船的市场竞争力.
재원22000m3LPG선적기출상,진행료전면적우화설계,연발설계료만족최신규범규칙요구적신일대21000m3LEG(액화을희)운수선.종결구설계착수,이21000m3LEG선위주요연구대상,종결구포치、규범교핵、건조공예등다방면진행료연구.대액화기선(C형창)결구설계수요고필적궤개중점방면작출논술:선체량결구강도계산교핵,학정선체량부면모수;유한원직접강도계산,평고구건강도、피로수명;전선진동분석화국부진동분석,학보선원적거주서괄성화선체구건적은정가고성;액화기선특유적선체결구온도장분석,득도온도분포병학정강재급별등.대전선결구진행료대량우화개진공작,해결료설계중팽도적난점.추출일개우수적설계방안,사해선결구경가고,가공건조경위편리,제승료해선적시장경쟁력.
On the basis of the original 22000m3 LPG carrier design, a comprehensive design optimization was carried out. As a result, a new generation of 21000m3 LEG (liquefied ethane gas) carrier that meets the latest rules and regulations is developed and designed. Initiating from the structural design of the 21000m3LEG ship as the main research object, the structural arrangement, rule check, construction process and other aspects have been researched. Several key aspects of the structural design of the LEG carrier (Type C tank) are discussed in this paper, which include hull girder strength calculation and determination of section modulus; direct strength calculation based on finite element method, structural member strength and fatigue life assessment; overall and local vibration analysis to ensure the accommodation comfort, as well as hull structure stability and reliability; and specific hull structure temperature field analysis for liquefied gas carriers to obtain temperature distribution and steel grade determination. Lots of structure optimization work has been done to solve the design difficulties. An outstanding design scheme is proposed hereto make the structure of the ship more reliable, the construction more convenient, the market competitiveness stronger.